Publications

Publications Found: 1437

Increased CO2 Loss From Vegetated Drained Lake Tundra Ecosystems Due To Flooding
Zona, D., Lipson, D. A., Paw U, K. T., Oberbauer, S. F., Olivas, P., Gioli, B., Oechel, W. C.

Tundra ecosystems are especially sensitive to climate change, which is particularly rapid in high northern latitudes resulting in significant alterations in temperature and soil moisture. Numerous studies have demonstrated that soil drying increases the respiration loss from wet Arctic tundra. And, warming and drying of tundra soils …


Journal: Global Biogeochemical Cycles, Volume 26 (GB2004): n/a-n/a (2012). DOI: 10.1029/2011GB004037 Sites: US-Bes

The Role Of Harvest Residue In Rotation Cycle Carbon Balance In Loblolly Pine Plantations. Respiration Partitioning Approach
Noormets, A., McNulty, S. G., Domec, J., Gavazzi, M., Sun, G., King, J. S.

Timber harvests remove a significant portion of ecosystem carbon. While some of the wood products moved off-site may last past the harvest cycle of the particular forest crop, the effect of the episodic disturbances …


Journal: Global Change Biology, Volume 18 (10): 3186-3201 (2012). DOI: 10.1111/j.1365-2486.2012.02776.x Sites: US-NC1, US-NC2

State-Dependent Errors In A Land Surface Model Across Biomes Inferred From Eddy Covariance Observations On Multiple Timescales
Wang, T., Brender, P., Ciais, P., Piao, S., Mahecha, M. D., Chevallier, F., Reichstein, M., Ottlé, C., Maignan, F., Arain, A., Bohrer, G., Cescatti, A., Kiely, G., Law, B. E., Lutz, M., Montagnani, L., Moors, E., Osborne, B., Panferov, O., Papale, D., Vaccari, F. P.


Journal: Ecological Modelling, Volume 246: 11-25 (2012). DOI: 10.1016/j.ecolmodel.2012.07.017 Sites: US-UMB

Interactive Effects Of Nocturnal Transpiration And Climate Change On The Root Hydraulic Redistribution And Carbon And Water Budgets Of Southern United States Pine Plantations
Domec, J., Ogee, J., Noormets, A., Jouangy, J., Gavazzi, M., Treasure, E., Sun, G., McNulty, S. G., King, J. S.

Deep root water uptake and hydraulic redistribution (HR) have been shown to play a major role in forest ecosystems during drought, but little is known about the impact of climate change, fertilization and soil characteristics on HR and its consequences on water and carbon fluxes. Using data from three mid-rotation loblolly pine plantations, …


Journal: Tree Physiology, Volume 32 (6): 707-723 (2012). DOI: 10.1093/treephys/tps018 Sites: US-NC1, US-NC2

How Climate And Vegetation Type Influence Evapotranspiration And Water Use Efficiency In Canadian Forest, Peatland And Grassland Ecosystems
Brümmer, C., Black, T. A., Jassal, R. S., Grant, N. J., Spittlehouse, D. L., Chen, B., Nesic, Z., Amiro, B. D., Arain, M. A., Barr, A. G., Bourque, C. P., Coursolle, C., Dunn, A. L., Flanagan, L. B., Humphreys, E. R., Lafleur, P. M., Margolis, H. A., McCaughey, J. H., Wofsy, S. C.

The effects of climatic factors and vegetation type on evapotranspiration (E) and water use efficiency (WUE) were analyzed using tower-based eddy-covariance (EC) data for nine mature forest sites, two peatland sites and one grassland site across an east–west …


Journal: Agricultural And Forest Meteorology, Volume 153: 14-30 (2012). DOI: 10.1016/j.agrformet.2011.04.008 Sites: CA-TP4

Controls On Carbon Dynamics By Ecosystem Structure And Climate For Southeastern U.S. Slash Pine Plantations
Bracho, R., Starr, G., Gholz, H. L., Martin, T. A., Cropper, W. P., Loescher, H. W.

Abstract. Planted pine forests (plantations) in the southeastern United States are an
important component of the continent’s carbon balance. Forest carbon dynamics are affected
by a range of factors including climatic variability. Multiyear droughts have affected the
region in the past, and an increase in the frequency of drought …


Journal: Ecological Monographs, Volume 82 (1): 101-128 (2012). DOI: 10.1890/11-0587.1 Sites: US-SP2

The Challenges Of Measuring Methane Fluxes And Concentrations Over A Peatland Pasture
Baldocchi, D., Detto, M., Sonnentag, O., Verfaillie, J., Teh, Y. A., Silver, W., Kelly, N. M.

We report on methane (CH4) concentrations and efflux densities that were measured over a drained and grazed, peatland pasture in the Sacramento-San Joaquin River Delta of California over a three year period. The site was ideal for micrometeorological flux measurements due to its very flat topography, its …


Journal: Agricultural And Forest Meteorology, Volume 153: 177-187 (2012). DOI: 10.1016/j.agrformet.2011.04.013 Sites: US-Snd

Ecological Controls On Net Ecosystem Productivity Of A Seasonally Dry Annual Grassland Under Current And Future Climates: Modelling With Ecosys
Grant, R., Baldocchi, D., Ma, S.

Net ecosystem productivity (NEP) of seasonally dry grasslands in Mediterranean climate zones is determined by the duration and intensity of rainy vs. dry seasons. Precipitation in these zones is expected to decline with climate change during the next century, possibly reducing NEP. Ecosystem models used to study climate …


Journal: Agricultural And Forest Meteorology, Volume 152: 189-200 (2012). DOI: 10.1016/j.agrformet.2011.09.012 Sites: US-Var

CO2 Fluxes Of A Boreal Black Spruce Chronosequence In Eastern North America
Payeur-Poirier, J., Coursolle, C., Margolis, H. A., Giasson, M.

Forest harvest and subsequent stand development can have major effects on the carbon cycle of boreal stands. Carbon dioxide (CO2) fluxes of a three-point black spruce harvest chronosequence located in the boreal forest of eastern North America were measured over a one-year period at the ecosystem scale with the eddy covariance …


Journal: Agricultural And Forest Meteorology, Volume 153: 94-105 (2012). DOI: 10.1016/j.agrformet.2011.07.009 Sites: CA-Qcu

Ozone Deposition To An Orange Orchard: Partitioning Between Stomatal And Non-Stomatal Sinks
Fares, S., Weber, R., Park, J., Gentner, D., Karlik, J., Goldstein, A. H.


Journal: Environmental Pollution, Volume 169: 258-266 (2012). DOI: 10.1016/j.envpol.2012.01.030 Sites: US-Lin